312 
clvxi. gramine^e (Stapf). [ HyparrJienia . 
Gossweiler , 312 0 ! gravelly slopes south of Munongue, Gossweiler, 4152 ! sources 
of the River Kuariri, in open woods, Gossweiler, 2630 ! 
Mozambique Distr. Rhodesia : near Mumbwa, Mrs. Macaulay, 48 ! Salis- 
bury, on granite soil, Nobbs, 669 ! 
Glossweiler’s numbers 4152 and 2630 might be treated as a form glabrescens, 
differing from the other specimens quoted in the completely or almost com- 
pletely glabrous leaves. This form glabrescens includes several comparatively 
weak samples with narrower and softer blades. The structure of the panicle 
and spikelets, however, is the same in all the specimens. 
9. H. chrysargyrea^$£op/. Annual, up to over 5 ft. high. Culms 
erect, stout, terete, glabrous and smooth. Leaf-sheaths terete, 
tight, firm, the lower villous-hirsute along the margins or all over 
in the upper part ; ligules scarious, rounded, up to 1J lin. long ; 
blades linear from a long-attenuated base (in the lowest leaves almost 
reduced to the stout whitish midrib) tapering to a fine point, up 
to over 2J ft. long and 5 lin. wide, rigid, subglaucous or reddish, 
rough above, very scabrid on the more or less revolute margins, 
loosely or sparingly hirsute on both sides, often coarsely bearded 
above the ligules ; primary lateral nerves about 4 on each side, 
prominent above. Spatheate panicle elongated, lax, up to over 
3 ft. long : primary internodes up to 8, the lowest .3 very long (the 
lowest up to 1 ft.), the upper rapidly decreasing ; tiers few- to 11- 
rayed mixed or simple, the lowest compound rays up to 2 ft. long 
and 4— 5-noded, the simple 2-2J in. long ; subtending leaves (except 
the uppermost) with well-developed blades, resembling the pre- 
ceding leaves. Spatheoles narrowly lanceolate, acuminate, 2-3 in. 
long, glaucous -reddish, glabrous, scarious, at length tightly in- 
rolled ; peduncles filiform, enclosed in the spatheole or laterally 
exserted and strongly recurved during flowering, at length more 
or less straightened and terminally exserted (by up to 1 in.), pubescent 
upwards, with long spreading tubercle-based hairs from the curvature. 
Racemes not or only slightly spreading, at length epinastically 
deflexed (always ?), rather dense, about 1-1 J in. long, 11-13-awned 
per pair, silky, fulvous or almost rufous, the lower subsessile, the 
upper with a filiform base, 1-J- lin. long, both bases dark, glabrous 
or hairy in the fork, shortly auricled ; joints filiform, to over 
1| lin. long, obliquely truncate, densely and very shortly ciliate, 
lower cilia white, upper fulvous, or almost all fulvous ; pedicels very 
similar but slightly longer and produced into a short linear or subulate 
auricle. Homogamous pair of spikelets 1 at the base of the lower 
raceme only. Fertile spikelets oblong, 2J-3 lin. long, pale (apart 
from the hairs) ; callus very short, obtuse, minutely bearded. Glumes 
equal, lower subchartaceous, minutely truncate and fulvously hairy 
on the back, margins very narrowly involute below, indexed above 
with rigidly ciliolate keels, nerves 10-12, intracarinal 4-6, fainter 
downwards ; upper glume lanceolate-oblong, acute, 3-nerved, 
hairy above, ciliate upwards. Lower floret reduced to a linear- 
